Motor-hood



H. L.4 LEVEJRETT;

MOTOR HOOD.

APPLICATION FILED sans. 1919.

Patented Jan. 1s, 1921.

UNITED STATES PATENT OFFICE.

HARRY L. LEVERETT, NEW YORK, N. Y., ASSIGNOR TO INTERNATIONAL MOTOR COMPANY, 0F NEW YORK, N. Y., A CORPORATION OF DELAWARE.

Moron-Hoon.

' Speccation of Letters lPatent.

Patented Jan. 18, 1921.

Application led September 9, 1919. Serial No. 322,606.

To all whom it may concern:

Be it known that I, HARRY L. Lnvnnn'r'r,

a citizen of the United States, residing in the borough of Manhattan of the cit of New York, in the State of New York, have invented certain new and useful Improvements in Motor-Hoods, of which the following is a specification, reference being had to the accompanying drawing, forming a part hereof.

This invention relates to an improved motor hood and has for its object to incorporate in such a hood an adjustable Ventilating door for the admission of air to the motor chamber. The improved construction embodies tlie advantages of simplicity of construction, low cost of manufacture, ease of operation and substantial water tightness. One embodiment of the invention 1s illustrated in the accompanying drawing, in which- Figure 1 is a view in plan of a motor hood provided with the improved door.

Fig. 2 is a view in side elevation of the i hood shown in Fig. 1, the door in opened position being indicated in dotted lines.

Fig. 3 is a fragmentary detail view in Section of the devices for holding the door in any desired position, theV view being taken on the plane indicated by the line 3--3 of Fig. 1 and looking in the direction of the arrows.

The hood a, which may be of an form, is shown as having a substantially at upper wall a in which is formed an opening a? adapted to be closed by a door b which is hinged at its rear end on the upper wall, .the hinge line being indicated at b. The perimeter of the opening a2 is preferably formed by rolling the metal along the opening in the upper wall a on itself to form a sill for the door, as indicated at a3. The door b which, in outline, conforms to the outline of the opening a?, lhas its edge, except at the hin e line b', formed with a downwardly exten ing flange b2 adapted to rest, through out its length, on the sill a3 when the door is closed, thus forming a substantially water tight joint. To the front end of the door I) is secured a reversely bent guide strip c the lower end o of which is slotted and extends downwardly through a slot a* in the upper wall of the hood into the motor chamber. In front of the Slotted member c and on the upper wall a of the hood is secured a bracket d, the vertical face of which is engaged slidingly by the guide strip c. Supported loosely` in the bracket d and extending through the slot in the guide piece o is a bolt e on which is threaded a wing nut e, the head e2 of the bolt bearing against the rear face of the slotted strip c. By the relation of the parts just described it will be evident that the only uncovered opening in the upper wall of the hood is the relatively small slot a* and this slot is of such dimensions and so disposed with respect to the slotted strip c and the bracket d as practically to prevent entry of water therethrough.

When direct ventilation under the hood a is not required, depending upon the outside temperature, the door b is secured in closed position by means of the wing nut e.l and the binding action of `the head of the bolt e on the guide Strip 0. At this time the iange b2 on the door ZJ is maintained in snug engagement with the sill a3 throughout the meeting line. When direct ventilation under the hood is desired, the wing nut e is loosened and the door Z) elevated to any desired extent whereupon it may be locked in such position by setting up on the wing nut e. The ex tent of opening may then be adjusted and the air admitted is deiiected by the underside of the door b directly into the motor chamber. The door remains always in such position with respect to the opening a2 as to prevent the direct entry through the opening of foreign matter.

The construction is simple, inexpensive to manufacture, sightly and affords an easily adjusted Ventilating opening which can, when desired, be closed with substantial water tightness.

I claim as my invention:

1. ln a motor hood in combination with the upper wall thereof having an opening therein, an adjustable door hinged at its rear edge to the wall at the opening, a rolled metal sill carried by the upper wall along the perimeter of the opening and a depending flange carried along the perimeter of the door to overlie the sill when the door is closed and forming a substantially water tight connection therewith.

2. In combination with the upper wall of a motor hood having an opening therein, a door hinged at its rear edge to said wall along the opening, a slotted guide piece secured et the Afront edge of the door and eX- tending downwardly through the upper Wall into the niotor chamber, a bracket secured to the upper Wall adjacent the guide piece, a bolt carried in the bracket and resting,- in the slot of the guide piece end a nut on the holt to clamp the piece in adjusted position.

3. ln a motor hood in combination with the upper Wall thereof haifing an opening therein, a door hinged at its rear edge to said Wall along the opening7 e rolled metal sill formed in the metal or' the upper Wall along the perimeter of the opening7 a depending ange formed in the metal of the door along the perimeter thereof to overlap the Sill when the door is closed` a Slotted `guide piece secured at the front edge of the door and extendingdownwardl,7 through the upper wall into the motor chamber,y a bracket Secured to the upper wall adjacent the guide piece, a bolt carried in the bracket and resting;` in the Slot of the guide piece :1 nd a wing; nut on the holt to clamp the piece in adjusted position.

This speeiieation signed this 5th day of September.i A. D. 1919.

HARRY L. IVERE'FF. 

